{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA32-0HC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA32-0HC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0HC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0HC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA32-0HC0, switch disconnector in MCCB design, 3-pole, In=250 A, busbar connection, shunt trip (STL) 12-30 V DC / 24 V AC, 2 auxiliary switches HQ, IP40 front.","salesMarkdown":"The Siemens 3VA1225-1AA32-0HC0 is a SENTRON switch disconnector in MCCB design, rated for 250 A continuous current. It provides visible isolation under load, not overload or short-circuit protection. The front terminal arrangement accepts busbar connections for the main circuit, which keeps the panel layout compact and reduces wiring labor compared to lug terminals. Two integrated HQ auxiliary switches (form C, 2 CO contacts) provide status feedback to the PLC or safety circuit without needing an add-on block. The 250 A rated continuous current (Iu) sets the maximum uninterrupted load this switch can carry without exceeding its thermal limits. The maximum power loss of 57 W at full load means the enclosure needs adequate ventilation or derating if packed tightly with other heat sources — a consideration for panel OEMs filling a small cabinet. Short-time withstand ratings of 3 kA for 1 second and 3 kA for 0.5 seconds define the fault current the switch can survive without welding contacts or degrading. This is not a breaking capacity — the upstream protective device must clear the fault within those limits. No undervoltage release is fitted, so the switch stays latched on loss of control power — that's the expected behavior for a disconnector that must not drop out on a voltage dip.","metaTitle":"Siemens 3VA1225-1AA32-0HC0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA32-0HC0 switch disconnector, 250 A rated continuous current, 3-pole, MCCB design, shunt trip STL, 2 HQ aux switches, IP40 front. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"105 mm","Height":"158 mm","Limited To 1 S":"3 kA","Trip indicator":"No","Number of poles":"3","Product version":"in MCCB design","Voltage trigger":"Yes","lifecycle_stage":"current","Limited To 0.5 S":"3 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"57 W","Auxiliary contact version":"2 auxiliary switches HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"2","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"busbar connection","Arrangement of electrical connectors / for main current circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=569256&mlfb=3VA1225-1AA32-0HC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA32-0HC0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA32-0HC0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1225-1AA32-0HC0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}